Car brake



Feb. 27, R923. 1,446,676

f J. w. WATERS CAR BRAKEA Filed Aug. 4, 1921 CAE BRAKE.

Application filed August Il, 1921.

/f'o ail/L" wil/om may concern.'

lie it known that l, dor-1N YV. l/Vri'rnns, a citizen of the United States, residing at nio; tgoineiy. in the county of Fayette and "itate o' Vilest Tifirgin'a, have invented cernew and use'tul improvements in Car alms; and l lo declare the iollowing to be be a full, clear, and enact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved car brake oit the type used upon freight cars and one object ot the invention is to provide the brake setting* sha-lit with an improved type o'l hand wheel and to also provide an improved type oi' lever handle for use in turning the hand wheel and thus permitting the brake to be very tightly applied.

flnother object of the invention is to provide improved means for mounting the lever handle so that this handle may normally hang dow rdly against the side of: the cai' but may be swung upwardly and oscillated about the brake shaft and moved into and out off engagement with abutment blocks carried by the hand wheel.

Another object of the invention is to so c nstruct these abutment blocks that they will be provided with cam faces which will serve to drive the handle over the abutment blocks when the handle is moved in one direction but permit the handle to have irm ,np'agement with the abutment blocks when the handle is moved in an opposite direction.

fnomer object of the invention is to provide an improved type of pivotal connection between the handle and shaft-engaging collar. the pivotal connection being` such that the handle will be braced at its pivoted end and the danger o the handle being broken or bent eliminated.

flnother object of the invention is to so mount this handle that when swung downwardly to an inoperative position, it may he positioned in a recess formed in a bearingo" the brake shaft and prevented iroin a tendency to move about the brake invention is illust-rated in the `acj drawings, wherein:

is a view in elevation showing; provided with the improved Alfifure l a brale shaft wheel and handle har.

i a view in elevation showing the T" figure@ s Serial lo. 489,843.

structure oli Fig. l but looking iroin the side ot acar instead of at the end o' a Car. Figure 3 is a lraggy'mentary view partially 1n elevation and partially in section and showing the handle bar swung upwardlv t0 an operative position. u

Figure il is a top plan view with the handle bar in the operative position.

Figure 5 is a. transv sectional view taken along the line oiY l. l

rlhe brake shaft l is of a conventional construction and is rotatably mounted at the rear of the freight car 2 and passes through bearings and /l and also passes thronglf a platform A il of the ear. A ratchet wheel 6 is carried by the bi'alio shalt 'l above the plattorin and is engaged by a. pawl 7 which is pivotally mounted by means of a pivot pin 8 and is yieldably held in engagement with the pawl by means of a spring 9. This pawl serves to normally permit rotation of the brake shai'it in one di ection but prevents rotation in a reverse direction and it will be readily seen that when the shaft is rotated to apply the brake, the pawl will prevent the shai't from turning in a reverse direction and releasing` the brake. l the same time, the pawl can be easily moved to an inoperative position and thus permit the brake to be released.

il hand-wheel l0 is rotatably mounted upon the reduced and squared end portion 1l the shaft l and is positioned above a reduced and rounded shaiit section 12 upon which will be rotatably mounted a collar 13. having' the hand-wheel 'lO mounted upon a 'flared shaft portion ll, the shaft may be rotated through the medium of the hand wheel and by having` the collar rotatably mounted upon the reduced and rounded shaft section l2, a handle carried by this collar may be oscillated aboutthe shaft and movement imparted to the shaft and wheel as will be hereinafter brought out. Vlfhe lever or handle bar llt is provided its ing' arms and 19 ot the collar 1? an inspect-ion ot Figure 1-` it that the hearing; arm 18 is of i than the bearing' arm 19 and extends along the side ot the head oi the handle to a o which extends from the end wall vthe lever handle may easily ride over the abutment blocks and thus permit of the lever handle being swung into position forengaging one of the abutment blocks against the straight entend thereof and impartrotary movement to the hand-.wheel vwhen the handle is swung counter-clockwise in Fig. 4.

When this brake is in place, the shaft eirtends .through the bearings 3 and 4l and through the platform 5 and the pawl 7 engages the ratchet wheel 6, and prevents the shaft from :having counter-clockwise movement. Under normal conditions, the handle will hang downwardly as shown in Figs. il and 2 and the head l5 will be positioned in a recess 2l formed in the hearing llv having the handle extending through this recess 21., it will be prevented from having movement vabout the shaft and it will be prevented from moving to a position in which it .might swing away from the car and strike the bralreman who was about to apply the brakes. lfilhen the brake is to be applied, the handle is swung upwardly to the position shown in Figs. 8 and 4l, and when in this po- "tion, the handle can lbe oscillatedv about the shaft. When the handle is moved about the shaft inca clockwise direction, the head l5 will engage against the straight cut face oiI one of Vthe blocks 20 and rotary movement will be imparted to the wheel and to the shaft vupon which the wheel is .rigidly mounted. After the wheel and shaft have 'been rotated for ,al portionof a rotation, the handle will `be swung back in a countercloclrwise direct-ion and as it moves the head l5 will .igage the cam faces of the blochjs and will thus ride easily over the blocks until the handle is in position for engaging a vdesired block and permitting the wheel to be again rotated. During movement of the a position for engaging a bloclr,

a counter-clockwise direction by the pawl i". ,lifter the brake hasbeen set, the handle will he again swung downwardly to ,the inoperative position and will hang as `shown in F' l and 2. lVhen it is desired vto release the brake, it is simply necessary to move the pa vl 7 out of engagement with the ratchet wheel and the shaft can then rotate in a `counter clockwise direction. When the brake is iirst applied, it is not necessary to make use of the handle as the shaft can be easily turned by means of the hand-wheel. ifibutment blocks will however permit of a good grip being obtained upon the rim por" tion of the wheel and thus prevent danger of the hand slipping off of the wheel during cold weather when heavy lgloves are worn by the brakeman. It willthus be seen that this brake structure is so constructed that with trouble, brakes already in use can be converted into brakes ofthe improved construction.

I claim:

l. The` combination with ajbralre lactuating shaft, of a hand wheel rigid upon said shaft, abutmentscarried by said wheel and having cam faces yand straight cut faces, a collar yloose upon said shaftbeiieath said wheel, a handle bar pivotally connected with said. collar for vertical movement into and out of anoperative position and when swung abouty the `shaft vin one direction moving over the cam faces` of the blocks into position for yengaging the blocks and rotating the wheel when swung in an opposite direction, and a bearingfoi"` the shaft provided with ya recess to receive the handle whenhanging in an inoperative position andv hold the handleand collar against movement around the shaft.

2. The combination with a` brake actuati wheel, a handle bar pivotally connected vwith thel collarfor vertical movement into and out of lan operative position with respect to the abutments carried bythe wheel, and a bearing for said shaft rprovided with a recess to receive the handle when hanging` in aiiinoperative position and hold the handle and collar against `movement around the shaft.

3. The combination with a brake' actuating shaft,ofa bearin for saidshaft, va hand wheel vrigid upon `the shaft, abutmeutscan ried by said hand-wheel, a collar loose upon said shaft, Aand a. handle pivotally connected with the collar for vertical movement into and out of annimmt-ive position, the handle when swung upwardly to an operative position having yengagement with said abutnientsfor imparting.rotary movement to the wheel and shaft when `the ,handle is swung about said shaft, the handle when hanging; in an inoperativeposition having engagement with saidhenringto prevent-'the handle and collar fronimoving about the shaft. ln testimony.yvhei'eofvl .have hereunto set my hand.

JOHN W. WATERS. 

